Garbage-incinerator.



J. B. HARP! GARBAGE INCINERA'I'OH.

APPLICAMON FILED AUG 2m im@ Patented June 30, 1914A LJ' SHEETS SHELI l,

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{ nucnot J-ES HARRIS @Witness/cn @Ummm u AQ hJ. B. HARRIS. GARBAGEINUINEHATR. APPLIUAMUN FILED AUG.23. 1913 Patented June 30, 1914.

3 SHEBTSMSHEET 2y oaoooewuoo Susana,

J. E. HARRIS.

GARBAGE INCINERATOH.

APPLIM'MON FILED Aucfnzs, m13,

Patented June 30, 1914.

nvamtoz 3 SHEETS-SHEET 3.

JOHN BROWN HARRIS, F NASHVILLE, TENNESSEE.'

GARBAGE-IN GINERATOB.

Specification of Letters Patent.

Application tiled August 23, 1918. Serial No. 786,299.

To all trimm it may concern:

Be it known that. I, JOHN BROWN Hemus, citizen of the United States,residing at1 Nashville, in the county of Davidson and Slate ofTennessee, have invented certain new and useful Improvements inGarbagelncinerators, of which the following is a specification,reference being had to the accompanyingry drawings.

This invention relates to garbage incinerators such as that disclosed inPatent No. 1,006,379, issued to me October 17, 1911.

The present invention has for its primary object to provide an improvedfurnace or incinerator of the above character which is especiallj,7designed for the use of municipalities and large manufacturing concerns,1n which means is embodied for insuring the complete combustion of therefuse matter and preventingr the emission of obnoxious odors. andutilizing.: the heat of tht` products of combustion for tbe generationof steam to be employed for various purposes such as drivingr machineryand the production of electricity.

My invention has for another and very important object to provideimproved means for charging the furnace with garbage and other refusesuch as is collected from city streets.

Another and more specific object of the invention resides in theprovision of a boiler including an upper series of drums and a lowerfeed water drum. `Aaid lou'cr drum bet arched dome Wall 11 of thefurnace.

ing: connected to the upper drums by means of tubes and the upper seriesot' drums being connected to cach other by horizontal tubes, one silt ofwhich constitutes an upper 2Lratc, and a superheater arranged cxteriorlyof tbc furnace proper and connected to the central drum of the upperseries.

My invention further contemplates the provision of improved means `forentirely consuming the .sulfureted gases, and converting the same intocarbon dioxid and sulfur dicxid. in which form. tbc products ofcombustion are liberated to the atmosphere.

The invention further coinprcliends the provision of means embodied inthc furnace walls` to supply heated o,\: \grnatcd air to tbc upperchamber ot' the furnace adjacent the i i i i i i i i i i i i isulfureted hydrogen gas to insure the thorough combustion of the latter.

With the above and other objects in view as will become apparent, as thedescription proceeds, the invention consists in certain constructions,combinations and arrangements of thevparts that I shall hereinafterfully describe and claim.

For a full understanding of the invention, reference 1s to be had to thefollowing de-` scription and accompanying drawings, in. Whieh Figure 1is a vertical section of a garbage incinerator illustrating thepreferred practical embodiment of the invention; Fig. 2 is a sectiontaken on the line 2 2 of Fin. 1; Fig. 3 isI a top plan view; Fig. 4 is aiiori zontal section taken on the line 4-4 of Fig. 2; Fig. 5 is asection taken on the line 5 5 of Fig. 3.

Referring in detail to the drawings, 5 designates the front wall of afurnace and G the rear wall thereof. These wails are lined with firebrick indicated at. 7, said walls being strengthened by iron beams asindicated in the drawings. The fire brick lining of the front wall 5 isspaced from the wall proper to provide an air spaceS. The furnacestructure is preferably of rectangular form in plan and the outer facesof said walls are preferably covered by metal sheetimgr shown at 9. Theside and end walls of the furnace are roofed with concrete or otherplastic material in which is embodied the The furnace structure abovereferred to is inclosed Within an outer building. (not shown) of threestories in height. and I have. indicated on the accompanying drawings.the

first. second and third Hoor levels. Immediately above the first. andsecond floor levels` Patented June 30, 1914.

the front wall of the furnace is provided with suitable doors 12 and 13respectively. whereby access may behad to the interior of the furnacefor the purpose of cleaning the grates to be later referred to.

At the rear of the furnace structure, the Isame is provided with a Hue14, the upper end of which is connected/as at 14 to the chimney staeit15, The/intermediate wall 16 of tire brick between this Hue and thearched dome tlicxeot for admixtnre with the interior of the furnaceproper is provided adjacent its lower end with im oiitiiil opening iTfor the products of coi'i'ihiisiion.

:iiiiiffiripliigiin "ihr liu? ii- Qri'veSi :is :i iiiis'i fillingfliiimher. lh@y iliifit c-illiciirig in lhi limiir unil (if miid fluefrom which it muy lio iwiiiii'ifil iiriiiigh :L Siiiliiiile Clean mitiii-m' pi'iii'iilvil in. one of the fiiie Walls. Cenrriily lieli'i'eoiilil@ front wiiil 5 and the wall H3 of ihe 'liirnfic and upon i1Vsuitable fuimiliilimi 19 if mzisfiiiry thv bridge wiill l5) is huilt.Thia bridge wall i@ providil. Willi u` hul :if zisliostiiil, having :iCushion lined iiiiigli 0i Smil fur the loi'iir fceil water lriiiii 2G.A, :apriva mi drums nre arranged AJighiljv alim@ thv sei'firiil fluorlevel, Siiiil iliiirii sries iiiiliiiiiiigf :i Ciinirfil ilriiiil E21.whirh is prei'eiwihly uf the same diameter iw ih@ imi'vi' ilriiiii 20and file smaller sirle ii-mw Q2 which are arranged in :nifl Sixppiii-lwlh i' thv front all 5 and the division willi l@ i-i'spocrivei'if 0fihefurnace. The voiiiiiil ilriiiri 2l is uninspired m the side limiV 22 bymoans mi' livr) series fit' tubes clvsignnwii Q3 iiiiri rvspeifiively,The iiilivz--^` in (farli svi-ies are arranged in pairs, :xiii paiiisiiil tiiliis living suitably spaced l'iwiil mii-li iiihvr fur :ipiiiimse which will lziiiappa iii'. TliiL upper side driiiiia QQ are,,-ilif fiiiiiiviil iii ilic lmvei-ire-nlrzil iliiim Q() hi iliv imiiiliiiiiily disposed series of iiilii's if, will iiihw living also:iriangi'rl in pairs. i i-miliiil w-ri'imil Prius nl" liiliifs 2liminneifi ihr iippii unil lmwr cruli'iil (li-lima 21 iiiiil .Ji'i. Thif'viiii'zil arrivi; (if tilhf` is iiri'iiiipgiil iii im: .Lilia hi' fgi'iiiips fspiif'eil from cach iiilwr :ih4 i-'iririi filiiii'iii iiiifigf. l. The rear iii? iiiiwzfiiwi ,wi eil' iiilws is ini-:19ml in :iiiiillli; will il \\i|ii-li ifl'ifiif'ls from thi, lnwri' iliiim :ffliii n piiiiii ligli`ilv hcliiw the scriind fiiiiii lvwl nl' liw 'iiriiiiiiiiil iii' Spaniel rlailiim ii ihi iippli rviilrzil drinn Qi. Theiippur fiili iliiiiii 2:2 :iw ii'iuiinlml iii siiilillr: phils iiliiili:ii-i miiuililjf Slipprirluil iipmi this liiiiifi iiwri` imi-s, wrlwziiiw rif ih@ li'iiiiii1 sii'iiif :inw il lhii l'iii'mice. Byiiiiiiiiiiiiig the siilii li-erwin lhisV iiiai'ii'ier,y the sama muyinlove iiimiiilli' ir fiiilii'eiriily in'illi respoirt lo this viii m2iippii iii-imi iii ille iixpzmsiwn or cmi yimi (if iiiiminimiiiglliilii's 23 and Q-l. iii iiiarxpiiiihiiiii iii this rililiipielulu-s ""i, the liiiiir fifiiil ilriiiii 20 is Hinwil in ils @inshiA wiliiiilwsliii; bmi un l'liii bridge will 1l).

iiiiiiiwflvil in the opposite @mi 0i' the driiiii iii?. (lim 0l' limsipipis is priwiiliii Willi :i .eil'ely @wzipc i'zilie whilix lhi iilliiiof .iliiiil iii() menons .A bane wan '4s is buia apen are upper centraldrum 21 and extends 'above the same horizontally extended through theexit openings 17 in the wall 16 and connected to the lower drum 20.

As thus far described, the operation of the incinerator is as followsThe boiler is lled with water until the large pipes 32 are entirelyfilled as will be shown by means of suitable gages. The grate 46 is nowfed with suitable fue] such as wood, coal etc., through the lower seriesof doors l2 until the interior of the furnace is thoroughly' heated. Thecarts containing the city waste, including garbage, trash of every kind,dead dogs, cats, rats, horses and other animals, drive up and approachand enter upon the top floor of the building. The cart is backed upuntil'its body is disposed over the hopper and its contents aredumpedinto the same. Previous to the deposition of theY refuse matter upon theupper grate, the gas and roducts of cmnbustion arising from the lire edon the lower grate passes upwardly *hrough the tubular grate 23 and overthe upper baille wall 48. These roducts then travel downwardly betweentic rear horizontal oblique boiler tubes, thereby heating the same. Ahose or pipe 57 is connected to cxeh of the upper side boiler drums 22having a common outlet from which a stream of hot water may be directedinto the carts to thoroughly sterilize the same. These water outletpipes also provide au exit means for air which is contained in theboiler tubes and drums when the same are supplied with water.

Assuming that the large hopper is 'full of garbage and other Wastematter, and that thc operator requires more fuel for the operation ofthe furnace,'he turns the three-way cock 44 in the double steam linefrom the boiler to the piston cylinder 41 so that the steam is admittedto one end of said cylinder, communication between the pipe 43 at theother end of said cylinder and the atmosphere being open. The piston insaid cylinder is thus actuated to Withdraw the steel plate 3S until thebottom of the hopper is fully opened so that the matter containedtherein will fall downwardly by gravity into the furnace and upon theupper series of boiler tubes 23, which it will thus be seen, serve thepurpose of a preliminary drying grate. The reversal of the threewayvalve opens the pipe 48 at the opposite end of the cylinder which nowserves as the exhaust while steam is admitted to the other end of saidcylinder, the pipe 43 connected thereto admitting live steam. Thus themovement of the piston in the cylinder-is reversed and r.the steel cutolf late 38.,driven back to its closed position, e shar chisel edge ofsaid plate cutting its way t irough the mass of matter which may bledisposed in the neck or spout of the hopper chamber. The admittedchar'ge of garbage and other refuse consisting of paper, card board,sticks, earpets, etc., lodging upon the series of boiler tubes 23 isthoroughly dried, and the lighter particles of matter are ilnmediatelignited and consumed. The lire upon t 1e lower grate 46 sends its flameand heat upward be neath the upper series of grate tubes 23 so that thebed of refuse on said tubes together with the burning light materialcauses the ignition of the other matter which is not of a highlyinflammable nature.. The bed of refuse rapidly disintegrates so that itis constanti y falling down through the iuterspaces between the gratetubes 23 upon the lower grate 46, where it is finally burned into hardinnocuous clinlters and ashes.

As before stated, the baille wall 27 terminates at its upper end belowthe central boiler drum 2l. At times, the upper series of grate tubes 23are covered with a compact impervious mass of refuse so that the draftcannot permeate the suine.' It is therefore obliged to pass over thebaille wall 2T from the lower gate 4G and orer the lop of the npwardlyextendinv' wall 4S from the upper grate 23 arranged above the drum 21.Thus there will be no back draft downwardly through the furnace andthrough .the i"uel bed on the rerrate 46. The lighter gas known assulfuretol hydrogen or stink gases will be held in the top of theinterior of the furnace and as the flames from paper and other Lightermaterial lea i upwardly from ports 1'? by the heavier products ofcombustion such as carbon dioxid and are prevented from passingdownwardly and out of the furnace as will smelling and obnoxious 'gasesuntil they have been converted by the above stated reactions.

During the operation of the incinerator. the interior of the 'furnace isat all tinios maintained at a temperature of above 1800 degreesFahrenheit and for this reason. the drums and tubes of the boiler insideof the furnace proper, must be kept absolutely full of water to preventthe oxi'dization of the metal which would follow if any spire were lefttherein. Thus the following ciru ation is constantly going on during theoperation of the plant. As the temperature increases on tlm lower grate46, the Water will grail ualljv rist .troni the fetal drum :unl 1n the`front obliqua tubes :unl in the verla-al tuhr.`v Ell, and pass into theupper front llruiu f fi,

215 :ual the nmwr central drum Qi amil 'from thv trout lrum through thcgrabe tuhufJ '23 to t'lu rrutral ilruin :unl thou through the war arrivaif tulaa 2l to thu rear (lrum Q2, axul rlunu thu war ollliqurlyllisposrcel haul( of tuin@ lo thrv fetal water llrllnz i2() lunar ithagan its` Atxirrulation. lVhen the trtngarutuw :ism allow 212 tlogrcnsFahren` mit or Thr lulilinlr pointa another distinct llifulatiou wwuiwnl' thu high] luaail mitm', ummr muti-:il irai through the pipes intoahi; lrtuh hrznls of fnptrhaater ai'ul ln f lw llilww of uiarrliratvranal the wat@ uhhh wa t utaiu-el iu thv tlruin heath; 2S nt'supvrlwatrr, bring of less tvlnialriturc than thhal ruiming thvy tlruzn`QS from tho rvut'lzu-lmihr lruni :2l will Sink Elnn'u tho tno weer hunfill ami rrturn tththe fetal n atri' ch'iun ll of the lloilni'. ThihI c'oluparaliwly mol usato-r ruiters the first. cirl'ulzltion allowltal'rilmh hut at all tunes tho rouler watrr iu thv suporhrator drumhead will inl llmrn through tlm pipe legs and give way to llaj Hiramlibri-ating water whrh is rzitnring ihr fla-lum 25 from tlv arntral nl1pm; lmilrr lrlaiu ffl.

ln alllitiou to the ahora, l hare proviehal nimma l'or in uriug tluAquivi; :unl perfect l-n|ul||l`xliuu nl' thv sulfurrl'til raises givenoil" lu' llal lan-ning' rvliur matter. To this and, l hiipply lha strataof .salfuretetl garin the loauu nl t'lul'urnartl with oxjt'geuatetl air.'link uumlr of aix' is ailluittal through a .wrirh of inlota .3l whirhopen into tht ,in-f lwlior nl thv l'nruarv iu tlu front wall thvl'tofilumr-tliate'lj: :allzu-rut llu^-` ruil ol the al'rlnll :lonw .rallll.aairl inlet [loria columuuiratinir with ilu` air spams H in the upperportion of' the liront will 5 of tht? liurnart' ahorn tlm ugliwr saril`of loors t3. snuit-:i of poi-tt` 5:2 aan' toi-:nml in rac'h of thtsillaWall-- :intl lllt' trout wall oli'llu' l'urnalr anrl `nilily:etuawgllwliff all' to th:I vvrtic-al pa Lag-rs H tin-Vrin. ,Thurwrtiral naman-rs tammeunirar Hlth hr rotiewimueliug passag'v in thvappar portion ol' ihr liront wall tlurrul, ,in :nhlilional Farias ofports 5?. art l'ol'uaul in ravl! ol' thu willii wall V of the furnart:unl miuiluiniratr with flux passages S thrrani'` u'h'ifh rriuinato atthru' upper enel` approximalrly al thi" al't'onrl flour lrvtl. lhvatiuoixlwl-in air is appliwl from thin iutrwniural iaiwiir to thvinwaagfr lu tht'- luurr ism-tion of tln from wall :ual usura into thoinit-rior oli tha furuarl ovor Lhu luwrr `grata Ll, A:w will la'Y lal'rrlle-sc-iilwll. Air intaln openings 5l arr also forint-1l iu ih@ frontnali of thv lluruarr iuunllllilrli' allow thv loool' wrins of ilonr l!aull rr'uu muniratny with tlu :tir inwsagr S.

'Thr maar lilou paliarronty the` designates a (inail plate exhending:loir gitutlinally in the front wall of the furnace@ al; the'lower edgeol.' the openings whirl; arr l'lrmal by the doors lil Vmil will plali i5l'lo Vilh-l upon its inntr (alwwit'h luga .5K3 whitzli vagantupon thonull-i: 5w fit, boiler lhlui: 22 :unl 'servo to space tlnvail platofluire* from. Through the l'liait will mi the: fumare around the hmm Q2,air inlvr ports 5S are formed whirh cromuiuniiatwith the air space Sautl discharge lluatmusphvrin air entering aitl apar-c through thoporta` 5S, into thu nmwr portion l thv l'urnaru immediately over thegrain tubes 23. The air' entering through the ports .32 and 5Jt iscarried up through the paw-,aora S :unl finally admitted in a. prelaaste-ll 'uuclition i11.t0`th2 space above the uma-r grate 23. Thiaheated air which is highly impregnated with oxygen, greatly aizls iu theromhustzion of the matter upon tho grate tubes It is obvious that, theupper grate could not he supplied with oxyganal'vel air through thelower or bottom grata lf3 irrespeutve of the amount of (was air whichmight arise` through said lower grate. The oxygen which would be carriedinto the furnace through the lowr grate would soon become combined. wihcarbonal and hydrocarbons before the oxygrn `roulll arise alxive theupper grate 223, Hanf-e" it is highly essential that a circulaY tion ofoxygen air through the walls of the l'iunm-r ho maintained primarily inorder Lo iii-criait thtl expansion of the inner fro hrirh lining wall Tfrom Cracking the outer llriul wall nl' thu furnace which is not heatedto snrh a high lvm-ee. In order for the air iu the panama@ Si to beconstantly renewed so that itill not become static, there must he anultlrt hu' tlul salue and hy providing this i oatltt iaunwliately ahovethv upper grate 23, a suvtiou is rroatl-ll through the air Space as tlnAprrhratt-(l air is Withdrawn therefrom :lull a ronftant `supply of frushair ia thus nib'lull'aun into ha spare, S lli-tween the furnair wall[impor anll its fir-0, hrie'li lining T. s lat-lori stalwl, this lil-rshair ontrrs the fm2 Marr iuunwliatcly htnrath the lomo wall 11. The,ullul'atu1l h vlhogru gas whit-lt ia ru haacfl in thv lau-ning' of tha,garbage or otlur lllayirug uiathr is so murh lig'lilrr than thuatluoslihel'iw ail' that il; risas lo Lluvrry top nF ttluflu-narey (lomoat the momunl it is lilaratcll :lull hy the provision nl th(` llalllrwall 1H, :unl tho arrangfuurnt ol' ilu limit nulle-t lau-ts at: the wryhnltom nl' thvv naar ,-lluyluwliou rhanlhrl. a im trap iS l'ruiulwl :uallla olljlrtionahlc gaaf arr` hohl in thv louw olE tht` fumare. s allpaia au-l otlu-r uuiltm' of a ll'ln rharnrter rntrriug [hu I'ru'luu-o i`uuirkly ignitf-ll upon th(` limita grate'. tlu` llanahl whifh h-ap ovfrtlutou halllo wall IH on thu` ventral :lrum -Jl lil-lt' the :irrhvllilona; wall ll alul owing to the constant admission of oxygennted airthrough the ports 51, will innnediately lgnite the gases held in thedome of the furnace and convert the saine into sulfur dioxid.

carbon dioxd and water.

As above stated, the matter upon the uppcr tubular grate Q3 as it isconsumed disintegrates and falls down between the grabe tubes upon theobliquely disposed tubes 25. lt slides down these latter tubes and fallsbctwecn the saine upon the lower dumping grate lo where it is burned toashes and cliukcrs. As hereinhefore referred to, the grato i6 consistsof two pivotally mounted sections, and these sections are capable ofindependent. operation by means of suitable levers to dump theircontents which is dropped into steel hoppers arranged beneath the grate,said hoppers being arranged in a tunnel priwided below the lirst floorline in which the ash oars are mounted upon suitable tracks. lVhen themovement of the grate operating leven is reversed, the grate sectionsare brought to their closed positions as shown in Fig. 1. The hot ashesand clinkers in the :15h hopper preheat the air which rises beneath thelower grate. When the ashes have become cool, a boy `in tho tunnelpushes the steel car along the track rails until it is disposed underthe ash hopper. By manipulating another' lever, the contents of the ashhopper may be dumped into the car which is now pushed with its loadalong the rails from under the furnace. The car is elevated to top floorby moans of suitable mechanism, the contents thereof being dischargedupon an inclined screen in constant motion through Twhich the ashes passby gravity into a suitable storage bin, the clinlters tailing over thescreen by gravity down into a suitable bin or receptacle provided toreceive the same. l`lu,-.ie clinlrcrs are useful for ballasting roadboils and various other purposes While the a di 'from the refuse matteris commercially ialuable as aV fertilizer. The rear wall 6 of *befurnace is provided with a plurality of .uicninus through which a steamhose may Tic iiwerlcd and the tubes of the superheater cleaned ofaccumulations of soot. These openings arc of course, normally closed by'suitable doors. Each of the boiler drunis and the drums of thesuperhcater is provide! with lmit-able man holes whereby acces may bchad to the interior of the drums for tbc purpose of cleaning the boilerand .upcrlieaicr tubes. It is to be understood that the furnace may bebuilt in double, triplea or quadruple units up to any` requiredcapacity. generating from 100 to i000 horse pou'cr per unit from thelself contained water tube strani boilers and superhcaters.

From rbc foregoing, it is thought that the construction and manner ofoperation of my ampi-own iucincrator will be clearly and fullyunderstood. By the use of the same, garbage, waste paper, leaves, aswell as the Vcarcasses of dogs, cats, rats and other anmals can bereadily disposed of. By utilizing the refuse matte as a. fuel, it willbe 0b- Ivious that the interior of the furnace is at lall timesmaintained atv a high temperature g without the consumption of largequantities of wood, coal or other fuel. Thus lv am enabled to producesteam for power, heating purposcs, or the generation of electricity,thereby rendering the operation of the incinerator exceedinglyeconomical and of ob- 4rions advantage to munici Jalities, largemanufacturing concerns and tlie like.

'hile l have inthe foregoing, described a particular construction of thelower grate 4,6, and the manner in which thc ashes are discharged fromthe furnace and disposed of, it is to be understood that the partlcularstructural features of this portion of the incinerator may be greatlymodilied, and it willy therefore be appreciated that a different grateconstruction may be substituted for that shown in the accompanyingdrawings.

It is further to be understood that my invention is susceptible ofconsiderable modification in many other of its structural features and Itherefore reserve the right to resort to all such legitimate changes asmay be fairly embodied in the spirit and scope of the invention, asclaimed. Having thus described the invention, what is claimed is: i

1. A garbage incinerator c )mprising a vertically disposed furnace,upper and lower grates arranged therein, a boiler arranged in thefurnace including a lower feed drum and an upper drum, a baille wallbuilt upon the lower feed drum and having its upper edge spaced fromsaid upper drum, and an additional baille wall built upon the upper drumand extending abovesaid upper grate.

2. A. garbage incinerator comprising a vertical furnace, a lower gratearranged therein, a boiler arran ed in the furnace includinga lower feedt rum, :in upper series of spaced drums, tubes connecting the upperdrums to the feed drum,a series of horizontal tubes connecting adjacentupper drums and constituting an upper grate, and means for feeding therefuse matter to said upper grate.

3. A garbage incinerator comprising a vertical furnace, upper and lowergrates a1'- ranged in said furnace, a boiler in the furnace includingr alower feed drum, an upper drum, a series of tubes connecting saiddrains, a bailie wall incasing said tubes and haring its upper edgedisposed in spaced relation to said upper drum, and means for feedingthe refuse matter to said upper grate.

l. A garbage lncmerator comprising al Awill ieriii-iit fliriizire. uppermut tuwer grafos ai iuliigelt iii uit fili-nare, a imiter :ii'riuigeltiii ttie i'ui'uiile iiirtuitini :l tuwer feed drum,y :iii upper iti-uuu:l eries uf tubes connecting cti-lum` :i tniitte vzitt extendinglipwilrltty from the eetl itriuii mut iiiciisiiig huilt tlitieu. theupper erige nf sziiit wait teriiiiiiuiiig4 in spari-ett i'etatiuu tu theiipprr eti-uni. :iii ziiiititiuiint berriesfif expoeri tubes connectingrii'iit trump1 zliut means for feed ing thv refuse iiuitter tu the uppergrate.

5. A garbage inrilierzitor Comprising a` rertient furnace upper :mrttower grates :iraiiged iii said filmare, :i tiuite.' arranged iii thefliriiure ilu-hiding :i tower feed drinn, upper series of drums, :ivertical series of titties Connecting' ltie rentrait drum of Said upperseries with the friert iti-imi, oiitifpiety disposed tubes ruiiiieetiugezirti of the littiei iti-ums of said upper Aerier: with the feedrlruiii. ii useries: of hurixoiiteit tubes, ruiniert ing one rif saidiitter (triuiis with the eeritrzit upper drum, said tuirizmitnt tiitiesren stitutiiig au upper grate, zliill iiienns fur feeding" the refusematter te siiift upper grate.

G. A garbage iiiriiieriilur raiiiiiprisiiig :i Yertirat furnace, uppermilt tljm'er griites iii ranged iii smid t'iiriliu'e, :i imiteruri-:mgmt iii the fiiiilzire ini-hiding :i towel: fecit rtriiiii. iinupper :serien4 0i' itri liie .i rei-tirait i li fi= it tubesyrui'iiieetilig tue eeiitrnt trulli rit' lQxlitt upper seriey iritti ttuifeed itrliiii, lititipli-iy itiSpuseit titties euiiiieriiugmiiti of ttieeittiirr drums [if siiilt upper huiriefs iiitti ttie fecit driiiii. iiSeries (if tuirizliiitlit tubes emuiel-tiug une of said hitter itriliirlii'itti ttie reiilrzl'l llp per itrlliii, siiilt tuirixwutut tutuwiiatitlltiiij.; :iii upper gruta', :i tiziitte watt puriiiitty ilu-:ising rtw Sortir-iii tubes ruiiurrtiiijj, ttie een trui upper drum withliie 'eelt rtriiiii. :iiiit iur-nils fitr feeding the refuseiiiiiterizlt tu :milt ripper grate.

T. garbage iluiiierzipir ruiupl'ihilig ii wrtirtit lrliiiizii'e, :itemer grate :illiiiigrlt turi-iii. :i imiter iirruiigilt iii :iiiiilitiiriiule, iurtllltiiig rt tuirer teelt ltriuii. upper rentrait' uutuitte iti-umm ilitieis fuuiirliiiii wilt iip izrl' itruum it zittiottlrr` :uiit tlilierl @inistr tulip;r :lii upper guile.:lltititiriii-it tiitifff. voiriiertilig meti uf :uliit upper iti-ums totie frvlt Water itlluii u'tii-i'etiy :i e'iiiifitiiiltty rit rlitnitiiig(-lirrl'iit (if imiter ttiriiugti ttie ltrliiii is uiuiutuiiiuit. :xliltmelius inmiiileit upuii tturuut' lit ttle` furirfw tl tri-lt ttie refuseillzit- 'tri' uplui the upper gru@ tutti.

L". gui-tinge iiii-iiwlullr ll ili 'lli iu; zi iertii'ntty liti rweitt'llruiif'i. :i timer greife ziliiipged iii miti fiirilairl. :i tiuiter:lri'ziugeii in the fllririre iiirtliltiiig :l timer teelt iti-lun,upper ceiiriit :imi ,wie itrilliiw. :i series; mi tlities riilinertii itile tattili' itrl|iii- :uut rulietiliftiiig au ipper grup. ii certl'utwvl-iep* ut' tlitwf: ruiiiieriiiig iti@ iippmli-utrtlt ltrilm :intl thefeed Cirri-iii; :iii :utititiliuiit utJiipiety disposed berries lit"tubes ii-fiiiiiswtiiig the friert ltriliultii true ut' ttie ripper fitrlti'lliii, tritt lutter tutte4 ettili'iiiif`- tiri, ffii itu; tmwifgrate :imi ttirA ui ppl' rief; il

ixile tiitieil, :mit iueiiiu tiir 't'eeltiiig' itw zeile"a limiti-rupuii the ripper fisite tuilesE it. f ijzi'rtiifu; iiieiiiriilluirertiriit fuiuzilzen :l tfiwlr ltilieillf :i inviti-l' rlirziiigflylt iii l rtustiug :i tewei teelt ltrluiuy :iii if ltrlliiimt'litlleiiiiiiirirtiiigg rlzliit with enrti cattivi'` iiltftitiiiluet tilrimuti itrliiii ut ttm lippe" Witt tout wilt-er ltrliiir1 :i .iplrtirutlupipi` rmi lieitiliii tiitwei-ii tt'ie wpi'rti ter :llut itilrelitriititrliiii of s-uiiit upprr Het :iltltitimul pipe "uiiiiert'iliil;tiitmiii tirs) i'pvltliuter iluli tilt tri-t imiter iti-piu.. zur!fui-iur@ tur tirel'tiui ttir return; iiifllSi-i` italiiltilw:ruiuuwtiiiir tile itrllilri iii' mit 'upper sfei'url.

thin:

iill'tliitiufr ,umwelt i rulli", tutlutu4 l'lupilrtiwiir ileturviireitlimlt t'lirlmre piliriitel-t .riiti :in liiittet simi' l itlirA'fui' ttalfpi'uitm-LMJ"militil'latiiiii liruiiiperi ings ruuiietiiir;rriff rute: u'itti ttir interior llt the fui-mire. li zlrrziligelt iu.ritiri t'lirurire. :i iiliitlr :lriiiuirit iii itisy 'fili-mireiiit-iiiftiilg fi fred .izltei itrliiii milt llppii spaced drums,tubular connections between said drums and the feed water drum, a seriesof tubes connecting the upper drums to each other and constituting anupper grate, a super-heater arranged insaid flue, pipe connectionsbetween one of said upper drums and the superhcater, additional pipeconncctions between the superheater and the fced water drum, avertically disposed baffle Wall extending between the feed drum and saidlatter upper drum but terminating in spaced relation to the upper drum,and means for feeding the refuse material upon the upper grate tubes.

13. A garbage incinerator comprising a vertical furnace, a, centralbaille wall therein dividing the same into front and rear combustionchambers. a lower grate arranged in the furnace below said baille walland at one side thereof, an upper grate arranged in the furnace on thesame 51de of the `wall as said lower grate and above said wall, andmeans for feeding the refuse matter upon said upper grate.

14. A garbage incinerator comprising a vertical furnace. a centralbaille wall therein dividing the same into front and rear combustionchambers, a lower grate arranged in the furnace below said baille walland at one side thereof, an upper grate arranged in the furnace on thesame side of the wall as said lowcr grato and above said wall. a Secondcentral vertically disposed baille wall `ex tending abovtl said.uppergrate. and means for feeding the refuse matter upon said upper grate.

1f. A garbage incincrator comprising a vertical furnace having a centralbattle ,wall therein dividing the furnace into front and rear combustionchambers. a boiler arranged in said furnace including a lower feed drum,uppcr central vand side drums, said central upper drum being disposedabove and in spaced relation to said battle wall, tubes conncctin; r theuppcrscries of drums to the feed water drum, a grate arranged in thefurnacc below said baille wall and at one side of the fccd drum, andmeans for supplying` atmospheric air to the interior of the furnaceimmediatel)r above the upper side drums.

1G. A garbage incinerator comprising a vertical furnace having a centralbaffle wall therein dividing thc furnace into front and rear combustionchambers, a boiler arranged in said furnace including a lower feed drumdisposed immediatelyv beneath said baille wall and central and sideuppcr drums. said central upper drinn being disposed above and in spacedrelation to the baille wall.Y whereby communication is afforded betweenthe front and rcar combustion chambers below said upper drums, tubesconnecting the upper series of drums to cach other, additional tubesconnecting each of said upper drains to the feed drum, a grate arrangedin the furnace below and contiguous to said feed water drum, and meansfor supplying atmospheric air to the interior` of the furnaceimmediately above the upper side drums. 7 J

17. A garbage incineiator comprising a vertical furnace, upper and lowergrates ar p ranged therein, means for supplyingr atmospheric air to theinterior of the furnace at itsdome, and means for feeding the refuse-matter upon the upper grate.

181A garbage incinerator comprising a vertical furnace. upper and lowergrates arranged therein, the front wall of said furnace being providedwith an air passage, the side walls of the furnace being provided withair intake openings in communication with said air passa gc to supplyatmospheric air thereto, said front wall having a plurality of inletopenings thcrcin communicating with the air space and opening int/o thefurnace at its dome, and means for feeding the refuse matt-er upon theupper grate.

19. A garbage incinerator comprising a vertical furnace, a boiler'arranged therein including a lower feed water drum and an .upper seriesof drums. tubes connecting the upper series of drums to each otherland'additional tubes connecting cach of said upper drums to the feed waterdrum, a grate arranged in the furnace below said feed water drum and atone side thereof, means for supplying atmospheric air to the interior ofthe furnace immediately above the upper lside drums, andv additionalmeans for sup- 100 plying atmospheric air to the interior of the furnaceat its dome` 20. A garbage incinerator comprising a vertical furnace, aboiler arranged in the furnace including a lower feedidrum, a 105yielding Sup )oi-ting bed therefor, upper central and sidle drums, tubesconnecting the upper drums to each other, means for mounting the sideuppcr drums for movement in the furnace walls with respect to the 11ucentral upper drum. additional tubes connecting said side drums to thefeed water drum, and a grate arranged in the furnace contiguous to saidfeed water drum.

21. A garbage incinerator comprising a 1,15 vertical furnace, a lowergrate therein. a boiler arranged in the furnace, including a lower feeddrum, a vielding supporting bed for said drain, Iari-upper series ofspaced drunts. tubes connecting 123 the upper drums to the feed drum` aseries of horizontal tubes connecting adjacent uppcr drums andconstituting an upper grate, and moans for feeding thc refuse matter t0said upper grate.

Q2. garbage incincintor comprising a vertical furnace. a lowcr gratoarranged therein, a boiler arranged in `said furnace including a lowerfccd drum, a yieldable supporting bed therefor, upper central and 13aside drums, tubes connecting said upper through the drums is mantnined,and means 10 drums t@ each other: the tubes connectlng mounted upon theroof of the furnace to one 'of the side drums to the cent1-nl drum feedthe refuse matter upon the upper rate. constituting nn upper grate,movable sad- In testimony whereof I hereunto a x my dlesfurrunged in theWalls of the furnace signature in the preselxce of two Witnesses. uponwhich the side drums are mounted, ad- JOHN BROWN HARRIS. dltonal tubesconnecting each of said u )per W tnesses:

drums te the feed water drum where y a LEWIS TlLLMAN,

constantly circulating current 4o f water G. N. TILLMAN.

Itis hereby certified thai in Letters Patent No. 1,101,925, granted June30, 1914, upon the application ofQolm Brown Harris, of Nashville,Termessee,for an-irl1provement in Gurbage-lneinerubors, errors appear intile printed speeication requiring correction as follows: Page B, line117, forV the word will rend 1U,- page 4, line 61, for the word lowerread fuppn; and that the proper corrections hare been made in leand'reeords of the ofllce and are hereby made in the saicl LettersPaberit.l I l signed and Sealed this 11th my Of-Augusr, A. 13:, 1914.

[SEAL] J. rr. NEWTON,

Acting Commissioner of Pcneiw.Y

